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Finding the Fourth Proportional to 118,877.79, 164,050.58 and 65,165.07

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Solution

The fourth proportional to 118,877.79, 164,050.58 and 65,165.07 is: 89,927.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,877.79 : 164,050.58 = 65,165.07 : x
  2. Step 2: Convert to fraction form
    118,877.79/164,050.58 = 65,165.07/x
  3. Step 3: Cross multiply
    118,877.79x = 164,050.58 × 65,165.07
  4. Step 4: Simplify right side
    118,877.79x = 10,690,367,529.24
  5. Step 5: Solve for x
    x = 10,690,367,529.24/118,877.79
  6. Step 6: Final answer
    x = 89,927.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.